(8R,9S,13S,14R,17S)-14,17-Bis-hydroxymethyl-3-methoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 137725-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,7,2 and 5 respectively; the second part has 2 digits, 1 and 8 respectively. Calculate Digit Verification of CAS Registry Number 137725-18: (8*1)+(7*3)+(6*7)+(5*7)+(4*2)+(3*5)+(2*1)+(1*8)=139 139 % 10 = 9 So 137725-18-9 is a valid CAS Registry Number.
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